| Abstract: | It is well known that, for a congestible facility with constant long-run average cost, the revenue from the unconstrained optimal congestion charge (set so that each individual faces the marginal (social) cost of a use) exactly covers the cost of optimal capacity. In the context of Vickrey′s bottleneck model of morning rush-hour auto congestion, this paper investigates under what circumstances the first-best pricing and investment rules apply when both the time variation of the congestion charge is constrained and users differ in unobservable characteristics so that the same congestion charge must be applied to heterogeneous users. |
